You are 42 years old if you were born on July 21, 1981.
You are 42 years 8 months, 1 week, and 1 day old or 512 months old or 2,227 weeks old or 15,592 days old or 374,208 hours old or 22,452,480 minutes old or 1,347,148,800 seconds old You were born on a Tuesday.